YOU SAID:

My sisters friends have to sleep the night. That's all? Yep.

INTO JAPANESE

私の姉妹の友達は夜寝なければなりません。それで全部です？うん

BACK INTO ENGLISH

My sister's friends must go to bed at night. that's all? Yup

INTO JAPANESE

私の姉の友達は夜寝なければなりません。それで全部です？うん

BACK INTO ENGLISH

My older sister's friend has to go to bed at night. that's all? Yup

INTO JAPANESE

私の姉の友人は夜寝る必要があります。それで全部です？うん

BACK INTO ENGLISH

My older sister's friend needs to go to bed at night. that's all? Yup

INTO JAPANESE

私の姉の友人は夜寝る必要があります。それで全部です？うん

BACK INTO ENGLISH

My older sister's friend needs to go to bed at night. that's all? Yup